A B.M.C. Durfee High School math teacher who previously had been accused — and later acquitted — of cyberstalking school officials in Rhode Island was recently released from his most recent position last month.

FALL RIVER — School had been canceled for a third day in a row, but on Thursday afternoon, more than a dozen teachers and staff members at Frank Silvia Elementary School were back at their building. Except it was not with books or...